Global warming and desertification
GLOBAL WARMING
Definition:
The increase in temperature in the Earth’s atmosphere.
Causes:
- Throw trash
- Factories release smoke, chemical
- Vehicles release smoke, poison gas
- Burning fossil fuels causes he CO2 release into the atmosphere
- Oil spill, wasting resources and killed sea animals’ habitat.
- Wasting water by building buildings, swimming pools…
Effects of global warming:
- Greenhouse effect
- Climate change
- Desertification
- Sea level rises
Possible Solutions:
- Turn off lights if they are not in use
- Build swimming pools in our house to avoid dust mix with water so we won’t need to change water frequently.
- Throw trash in trash bin
- Recycle
- Plant trees
Real world example
Polar ice caps melting
1. Rising in sea levels. There are 5,773,000 cubic miles of water in ice caps, glaciers, and permanent snow. According to the National Snow and Ice Data Center, if all glaciers melted today the seas would rise about 230 feet, but it won’t happen in all at one.
2. Melting ice caps will throw the global ecosystem out of balance. The icecaps are fresh water, when it melts, it makes the sea water less salty. Some of the steams would cool up the areas around north-east America and Western Europe. But it would stop some of other effects of global warming in that area.
3. Temperature rising and changing landscapes in the Arctic Circle will endanger several species of animals. Only the most adaptable will survive.
4. Global warming could snowball with the ice caps gone. Ice caps are white, and reflect sunlight, much of which is reflected back into space, further cooling Earth. If the ice caps melt, the only reflector is the ocean. Darker colors absorb sunlight, further warming the Earth.
Storms and flood
Economy consequences, storm and flood cause do billions of dollars in damage, diseases cost money to treat and control and conflicts. And many people lost there home, their family…
Warmer water and more hurricanes
1. As the temperature of the ocean rose, the probably of the strong hurricanes will also rose. This happened in 2004-2005
2. Every time the temperature increase by 5% for every 1*C (1.8 *F) rise in sea surface temperature.
3. Summer heat warms the ocean’s surface and spurs Evaporation. As heat and moisture rise into atmosphere, billowing cloud, scattered showers, and thunderstorms form.
Spread of disease
When the temperature increases, the virus reproduced more and faster. Some of the insects carry disease back to the north in winter.
Heat wave
The deadly heat wave that swept across Europe in 2003, killing an estimated 35,000 people, could be the harbinger of an intense heat trend that scientists began tracking in the early 1900s. Heat waves not only make it seem difficult to body's function, they can be deadly as well. Extreme heat waves are happening two to four times more often now, steadily rising over the last 50 to 100 years, and they re going to be 100 times more likely over the next 40 years.
Vocabulary
- Greenhouse effect: Observed heat from the Sun and then reradiated back toward
- Greenhouse gas: Many greenhouse gases occur naturally, such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
- Fossil issue: Resources that can burn to provide heat, such as coal, oil, petroleum, nature gas…
- Desertification: The degradation of land when land becomes unproductive because it is affected by erosion, human…
- Sustainable: Using resources in wasting ways
- Carbon Dioxide: Oxygen + Compose of Carbon
- Emissions: Gasses (CO2) from transportation, factories released and go to the air.
- Degraded: Reduced in quality and value (in this case, we talk about land become unproductive).
DESERTIFICATION
Definition:
The degradation of land when land becomes unproductive because it is affected by erosion, human…
Causes and Effect:
Human causes:
- Overgraze: People allow animals to graze in a certain area split by fences without moving away. Animals hooves turn up the soil, make water easy to evaporate by wind.
- Deforestation: People cut trees down; destroy forest without growing trees again make the land become unfertile.
- Making wells: Plants can’t grow without water so people making wells to have ground water make the land unable to grow plants.
- Mismanagement in irrigation: People let water evaporate wastefully which lead to the salinity in soil increase. Salinity in soil make it’s very hard for plants to grow
Natural causes:
- Deforestations due to natural forest fires.
- Sand storms sweep soil away, make plants hard to grow.
Possible solutions to desertification:
- Surrounded plants by rocks to concentrate the amount of dew and keep plants’ moisture.
- Plants tall trees to block wind because the wind blow soil away and it also blow dews away. Trees make the soil not easy to become arid because it provides water and nutrient into itself and the earth.
- Use solar cookers to decrease the need of wood to cook.
- Grow bushes in dunes’ feet to keep dunes stable and reduce the amount of sand blowing away.